Interaction Scheme

Molecule

Palmatine
Palmatine

c = 12.5 µM

Host

Cb7
CB7

Binding Properties

𝜈 Molecule 1 : 1 Host
Ka = 4070.0 ± 50.0 M-1
Kd =
logKa = 3.61 ± 0.01
T 25.0 °C 298 K
Energy kJ mol-1 kcal mol-1
ΔG = -20.6 ± 0.03 -4.92 ± 0.01
These are the specifications of the determination of the experimental results.
Detection Method: Direct
Assay Type: Direct Binding Assay
Technique: Fluorescence
𝛌ex = 347.0 nm
𝛌em = 497.0 nm
IboundIfree = 8.2
Detailed information about the solvation.
Solvent System Complex Mixture
Solvents water
Additives sodium chloride 400.0 mM
Disodium phosph... 66.6 mM
Sodium dihydro... 33.4 mM
Total concentration 500.0 mM
pH 7.2
Please find here information about the dataset this interaction is part of.
Citation:

C. Li, J. Li, X. Jia, SupraBank 2022, Selective binding and highly sensitive fluorescent sensor of palmatine and dehydrocorydaline alkaloids by cucurbit[7]uril (dataset). https://doi.org/10.34804/supra.20210928148

Link: https://doi.org/10.34804/supra.20210928148
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Please find here information about the scholarly article describing the results derived from that data.
Citation:

C. Li, J. Li, X. Jia, Org. Biomol. Chem. 2009, 7, 2699.

Link: https://doi.org/10.1039/B820852B
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Binding Isotherm Simulations


The plot depicts the binding isotherm simulation of a 1:1 interaction of Palmatine (0.004914004914004914 M) and CB7 (0 — 0.009828009828009828 M).